|Quadrangle map, 1:250,000-scale||GU|
|Quadrangle map, 1:63,360-scale||D-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The location is approximate; it may be on Excelsior Creek about 3.5 miles above its mouth. Cobb (1979 [OF 79-1247]) cites Mulligan (1974, fig. 8) as the source for his location. This location is in the SW1/4, section 33, T. 13 N, R. 2 E., Copper River Meridian. It is possible that the location is farther upstream. The only direct reference to its location is in Mendenhall and Schrader (1903, p.46) who reported that 'further locations have been made in the region between Gakona and Chistochina on Excelsior Creek and the headwaters of the Shnu.' The Shnu is now called Sinona Creek (GU044); it is the next creek east of Excelsior Creek.|
Geologic descriptionCountry rock in the area is mostly volcanic rocks of the Pennsylvanian to Permian, Tetelna Formation. Placer deposits were found in the region in the early 1900s shortly after the discoveries of gold at Slate Creek, Miller Gulch, and other creeks in the Chistochina placer district. Nothing else is known of the deposits which are probably of the river-bar type.
|Geologic map unit||(-145.052202432309, 62.8595797281446)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Holocene placer.|
|Workings or exploration||A small placer operation was noted in this area by Mendenhall and Schrader (1903) but apparently there has been no activity since.|
|Indication of production||None|
Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Gulkana quadrangle, Alaska: U.S. Geological Survey Open-File Report 79-1247, 36 p.
Mendenhall, W.C., and Schrader, F.C., 1903, The mineral resources of the Mount Wrangell District, Alaska: U.S. Geological Survey Professional Paper 15, 71 p., 1 sheet.
|Reporters||W.T. Ellis (Alaska Earth Sciences), C.C. Hawley (Hawley Resource Group), and W.J. Nokleberg (U.S. Geological Survey)|
|Last report date||11/27/2000|